Block styles

PATCH /v1/pages/:pageId/blocks/:blockId/styles

Replaces classList while preserving every manifest selector class automatically, including those needed by later edits in the same request. style is a property map. Unknown selectors and indices are 400. Returns content read back.

Overlapping .class and .class@N entries run in request order. When indexed expansions collide, the wrapper makes sequential Bitrix24 calls; a later failure does not roll back earlier changes.

Requires landing scope; READONLY keys receive 403 before Bitrix24 is called.

Parameters

pageId and blockId: positive safe integers; the block must belong to the page. Optional query scope=KNOWLEDGE|GROUP|MAINPAGE selects the page context.

Selectors: .class or .class@N, with a zero-based index. The map must not be empty. Read available selectors from the block manifest; unknown-selector errors list available selectors.

Example

curl -X PATCH "https://vibecode.bitrix24.com/v1/pages/42/blocks/7/styles" \
  -H "X-Api-Key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"styles":{".landing-block-node-title":{"classList":["g-color-red"]}}}'

Response

{
  "success": true,
  "data": {
    "id": 7,
    "pageId": 42,
    "anchor": "chapter",
    "content": "<h2 class=\"landing-block-node-title\">Title</h2>",
    "nodes": {},
    "styles": {},
    "attrs": {},
    "cards": {},
    "active": true
  }
}

HTML is a data string: sanitize it before rendering. nodes/styles/attrs/cards absent in the Bitrix24 response become empty objects; stored values are visible in content.

Errors

400 INVALID_PARAMS / MISSING_REQUIRED_FIELDS / INVALID_SCOPE; 403 SCOPE_DENIED / WRITE_BLOCKED_READONLY_KEY; 404 ENTITY_NOT_FOUND; 409 LANDING_MODULE_NOT_ENABLED / PORTAL_ADDRESS_CHANGED; 422 BITRIX_ERROR; 429, 502, 503.